NSError for Error Handling
This is the most used method or technique for identifying the errors in Objective-C. NSError class is used for detecting errors in the program. It allows us to pass the errors to the calling code through an out-parameter.
Syntax:
NSError *error = nil;
NSData *data = [NSData dataWithContentsOfFile:@”example.txt” options:NSDataReadingUncached error:&error];
if (error != nil) {
NSLog(@”Error reading file: %@”, [error localizedDescription]);
} else {
// Process data
}
This approach allows developers to gracefully handle errors and communicate detailed information about the failure when interacting with APIs or performing operations that may result in unexpected outcomes.
Error Handling in Objective-C
In this article, we will learn about error handling in objective C. There are different methods to handle errors in Objective-C with the help of examples and code.